Can I make calls while roaming? ookyo November 30, 2018 02:54 Updated Follow Yes, just make sure you've minimum RM10 credit in your ookyo wallet. For roaming rates, you can refer to the latest rates here. Remember to select 'Hotlink'. Related articles Can I use mobile data while roaming? What are your voice and SMS charges? Do you sell devices? Unlimited Voice & SMS bundle 5 reasons why you should join ookyo!